In a thinly veiled attack at former Country Liberal Party (CLP) politicians Francis Xavier Kurrupuwu, Larissa Lee and Alison Anderson, who all recently quit the party, Mr Giles said the NT parliament was not acting in a professional way.

The three rebel MPs, who are indigenous people representing rural areas, quit the party amid claims of racism and lack of government action in their electorates.

"I think it has shown some key weaknesses in our parliamentary process with the level of skill set of some of the people who can come to parliament," Mr Giles said.

"It was quite embarassing I think from a democracy point of view," Mr Giles said.

He said he thought there were some people in the parliament who were not at a standard the community expected of them and singled out Mr Kurrupuwu's knowledge of how government works.

"I don't know how well-informed Francis is to date about some of the machinations or the mechanics of government," Mr Giles said.

"How that works, how policies are determined and put forward and the program implementation.

"The type of money that we spend in each person's electorate to try and make improvements," he said.

Despite the bad blood between the CLP and the three disaffected MPs, Mr Giles said he would welcome Mr Kurrupuwu and Ms Lee back into the CLP if they chose to again become part of the government and were willing to atone.

"There would have to be a lot of healing work done from Larissa's side of the schedule and some from Francis," Mr Giles said.

"We are offering the olive branch."

He did not mention whether he would allow Mr Anderson, who he has previously seen as a leader of the rebel group, to rejoin the government.

Political commentator from Charles Darwin University, Ken Parish, said Mr Giles' comments about Mr Kurrupuwu sounded vindictive, because they came after the MP turned his back on the CLP.

Mr Parish said all new MPs had to learn the business of government and Mr Giles should not think Mr Kurrupuwu was ignorant just because he was quiet.

"Aboriginal people from remote communities may appear reticent in some situations, it doesn't mean they don't know what is going on," Mr Parish said.